Legendary astronauts like John Glenn and Neil Armstrong achieved fame through single extraordinary moments. Yet Chris Hadfield is arguably the most famous post-Apollo astronaut thanks to his YouTube videos chronicling astronauts’ everyday lives. His new book, An Astronaut’s Guide to Life on Earth, includes what he learned from his time at the Canadian Space Agency.

Science News talked to Hadfield, who recently retired after a five-month stint on the International Space Station, about a few of the experiences discussed in his book and his thoughts on space science and exploration.

How has the transition back to Earth been going?

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